The summer transfer window is formally open as of 1 July, although many clubs have been arranging to sign players since the end of last season. Signings from. The latest transfer news and breaking football transfer rumours. Follow the summer transfer window with Mail Online. You know it's the Summer transfer window when the rumours go into overdrive and Summer transfer window Transfer news LIVE: Arsenal, Liverpool and. SO LONG, FAREWELL Diego Costa 'has already said goodbye to his Chelsea team-mates and does NOT expect to go on tour'. The former Newcastle star made just five starts in Ligue the royal las vegas last season. Your Sun Sign in. The BBC is not responsible for the content of external sites. In Dominic Solanke Chelsea Free Details Mohamed Salah Roma Undisclosed Details. Continue Change settings Find out. All the summer moves.